UltraVNC

Would it be possible to add a feature to show some custom message on a blank screen like "This computer is being remotely administered, if you want to terminate press ESC.." instead of turning the monitor off ? Users are trying to press the power button when they want to work with their computer ...

Would it be possible to add a feature like in windows terminal server ? I would like to connect to remote computer (windows) to do some administration, but all the application that I run on that computer will show only on my side of the screen. Something like sharing the pc for remote administration ...